Hey,
Apparently I am an idiot. But an idiot in desperate need of your help. I installed and started three 3D printers. Recently I wanted to change the stepsticks to more silent ones. So I did. However, I inadvertently loaded one in reverse and it threw out Atmega. BOOM! After the change to LCD I only have FFFFFFF. Replacing RAMPS, or LCD does not help.


I combine both. I load different configurations, different pins and it is still the same thing. Is there any chance for a rescue?